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Amazon DSP Software Engineer Interview Questions

The questions to prepare for a Amazon DSP Software Engineer interview. Questions from real interview reports rank first. Updated weekly.

50questions
~8htotal time
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1
CodingStart here. 28 questions · ~255 min
Find Unique Triplets That Sum to ZeroMedium
Practice

Identify all unique triplets in an array that sum to zero using a two-pointer approach.

ArraysSortingAmazon DSP
Check Binary Tree BalanceEasy
Practice

Use postorder recursion to determine whether a binary tree is height-balanced in O(n) time.

RecursionSearchingTreesAmazon DSP
What a Hash Table IsEasy

Explain what a hash table is, how hashing works, and why lookups are usually O(1).

InfrastructureToolsAmazon DSP
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2
System Design11 questions · ~100 min
Design a URL Shortening ServiceHard

Design a URL shortening service that routes, ranks, and monitors links at scale.

Feature StoreModel ServingAmazon DSP
Design an Order Tracking ML SystemMedium

Design an ML system that predicts and surfaces customer order status updates and exceptions in an e-commerce order tracking flow.

Feature StoreRetrievalModel ServingAmazon DSP
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3
Behavioral & Leadership8 questions · ~73 min
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4
More topics3 questions · ~27 min
Designing a Load BalancerHard

Tests system design depth for traffic distribution, scalability, and reliability considerations.

Networkingcloud infrastructureAmazon DSP
Choose Databases for a Use CaseMedium

Evaluates database selection trade-offs and ability to justify choices for a specific workload.

Amazon DSP
CAP Theorem and Design ImplicationsMedium

Tests distributed systems fundamentals and ability to make design tradeoffs aligned with CAP constraints.

cloud architecturedistributed systemsAmazon DSP
Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Second Highest Trader SalaryEasy
Practice
Practice drill

Find the second highest distinct salary from a single table using basic PostgreSQL ordering and limiting.

SubqueriesRankingSortingeClinicalWorksInformaticaSpectraforce Technologies
Analyze Customer Purchase Trends with Window FunctionsEasy
Practice
Practice drill

Calculate the monthly spending trends for customers using window functions and joins.

The Home DepotAvisoWorld Wide Technology
SQL for On-Time Delivery RateMedium
Practice
Practice drill

Use joins, conditional aggregation, and date filtering to measure Amazon DSP station delivery performance.

JoinsGroup ByAggregationsAmazon DSP
The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.